Outbound Laurentian Series 20 Degree Synthetic Rectangular Sleeping Bag 100% Polyester/ Lining 100% Cotton / Shell 100% Polyester Imported 3lbs of Quadratherm 4 hole hollow fiber insulation Total Weight: 4lb. 8oz. Cozy 100% Cotton Flannel Lining with a rip stop polyester shell Dimensions: 75"LX33"W Double layer construction to eliminate cold spots